Item Type: Mic Sensor Sound Module Material: PCB Purpose: Detect the sound strength Working Voltage: 5V Output: Analog Gain: Adjustable Package List 1 x Sound Detection Module 1Analog Output: The microphone sensor sound module supports analog voltage signal output, the signal amplitude is VCC/2. 2Function: This microphone sound detection module can detect sound strength of the environment, with high accuracy. 3Adjustable Gain: The mic sensor voice module has high sensitivity, built in amplifier circuit, and the gain can be adjusted as needed. 4AD Conversion: The microphone voice detection module can obtain the voltage signal of sound intensity through AD conversion. 5Dependable to Use: Professional manufacturing, voice detection module has high performance, strong reliability, making sure safety use.